Franz x



(No Model.)

P. X. WAGNER.

OUT-OFF FOR GAS BURNERS.

No. 374.096. Patented Nov. 29, 1887.

From,

ATTORNEYS NUFETERS, Phulwulhognpmr, Washingiou, D, C.

' UNITED STATES PATENT lrrrcn.

FRANZ X. WAGNER, OFNEW YORK, N. Y., A SSIGNOR TO STEPHEN T.

SMITH, OF SAME PLACE.

CUT-OFF FOR GAS-BURFNERS.

SPECIFICATION forming part of Letters Patent No. 374,096, dated November 29, 1887.

' Application filed January 20, 1887. Serial No. 224,897. No model.)

To aZZ whom it may concern Be it known that I, FRANZ X. \VAGNER, a

citizen of the United States, residing at New lowing is a specification.

, 1. Fig. 6 is a'section of the device usual.

My invention relates to improvements in devices for cutting off the supply of gas to the burner when the jet has been extinguished without turning a cock to shutoff the gas-supply thereto; and said invention consists, essentially, in the combination, with a burner, of a valve, an expansible and contractible chamber located within said burner, and a diaphragm or equivalent means closing the lower end thereof and bearing on the valve, all of which are more fully pointed out in the follow,-

ing specification and claim, and illustrated in the accompanying drawings, in which Figure l is a vertical central section of a burner containing my invention, the valve being shown open. Fig. 2 is'a similar view, showing the valve open and the parts in the position they occupy with the gas ignited. Fig. 3 is a sectional elevation. Fig. 4 is a horizontal section in the plane 00 at, Fig. 2. Fig. 5 is a similar section in the plane y y, Fig. applied to a modified form of burner. 1

Similarletters indicate correspondingparts.

In the drawings, the letter Adesignates the body of a burner, which is tapped out at one end, so that it ean'be secured to the gas-pipe, and in itsot-her endis fitted a suitable tip, as On inspection of the drawings it will be observed that the said burner is slightly larger in diameter-than ordinary burners and contains two chambers, a and. a, which are separated from each other by a disk, which constitutes a seat, B, for a valve-disk, G, located within the lower chamber, a. Acentral opening in the said disk or seat B allows the passage of a projection or stud, c, on the valvedisk 0. The said stud protrudes into the upper chamber, a, and contains a number of longitudinal recesses, which form with the open ings b in the valve-seat B passages for the entrance of the gas into the upper chamber, a, Fig. 5. The stem D of the valve is provided with a lateral portion having thereon a camsurface, d, which is adapted to be engaged by a'cam, e, on the end of a spindle, E, Fig. 3, extending through the burner when the valvedisk is to be depressed to supply gas. The

or secured to the body of the burner, and upon the inner end of said sleeve is a stop, f, against which the cam c is normally held by a spiral spring, G, Fig. 3, wound about the external portion of the spindle E. The two ends of the spring are secured, respectively, to the burner and to a rigid head or button, '0, on the spindle. The tendency of this spring is to normally'hold the cam e out of contact with the cam-surface d. on'the lateral portion of the valve-stem D. An encircling spring, F, confined between the lower side of this lateral portion and a bridge, f, in which the valvestem is guided, holds the valve-disk O normally against its seat B, and the supply of gas is shut off. By turning the head 6 in the proper direction the cam e engages with the cam-surface (2 and depresses the valve-dislqand when said cam is in a vertical position it engages with a notch or recess, d, in the lateral portion, so that the valve remains open.

In the upper chamber, a, is rigidly located a flask or chamber, G, the lower end of which is hermetically closed by an elastic diaphragm, 9, Figs. 1 and 2. This flask or chamber contains air or any other expansible and contractible fluid, and is provided with radial exteusions, whereby passages h, Fig. 4, are formed between it and the burner for permitting the flow of gas. chamber is so arranged in regard 'to the valve that when the diaphragm is forced outward by the expansion of the fluid within the same, owing to the heat transmitted thereto from the burning gas, the said diaphragm comes into contact with the projection on the valve-disk. The valve, being in the position shown'in Fig. l-that is, openis pushed downward a trifle farther by the. diaphragm and the cam e is released from the notch d in the stem, which cam e isinstantly turned to the position shown in Fig. 2 by the spring Gand against its stop, while the valve-disk is now held from its seat by the diaphragm. As long as the gas re- 55 spindle E extends through a sleeve formed in mains ignited the valve is thus held, but when the same is inadvertently extinguished the fluid in the flask or chamber contracts on cooling, and the valve 0 is moved upward and to its seat by the spring E, and the gas supply is eifcctually shut ofi.

The object of my invention is to provide a device for cutting off the supply of gas in the manner described, which is located wholly within the burner itself, and consequently can not throw a shadow, which has been the main objection to the prior devices.

hen two or more local jets are to be employed, Fig. 6, on one and the same burner, I provide the body A of the same with lateral branches A, (two or more,) in which the tips are secured, and which communicate with the interior ofthe said body. The expansible and contraetible chamber is located in the body A, as before, and heat is communicated thereto from the combined jets.

"What I claim as new, and desire to secure by Letters Patent, is-

l. The combination, with a burner, of a spring-actuaied valve, a closed expansible and contraetible chamber located within said burner, a cam adapted to open the valve, and a diaphragm at one end of the chamber, and constructed to engage the valve, substantially as shown and described.

2. The combination, with a burner, of a valve, a closed expansible and contraetible chamber located within said burner, a diaphragm at the lower end of the chamber constructed to engage the valve, and a device for opening the valve to supply gas to the burner, substantially as shown and described.

3. The combination, with a burner, of a sprlngpressed valve located in the burner, a seat for said valve, an cxpansible and contractible chamber located in the length of the burner and near the upper end thereof, a diaphragm closing the lower end of the chamber, a cam on a spring-actuated spindle adapted to open and hold the valve temporarily, and a projection or guide on the valve extending through the valve-seat, substantially as and for the purpose set forth.

4. The combination, with a burner, of a valve-seat, a spring-pressed valve, the stem thereof having a camsurface anda notch or recess, d, therein, a spring-pressed cam, as e, engaging said stem, means, as described, for moving the cam to open the valve and to release the same, and an expansible and contraetible chamber, as G, closed by a diaphragm, substantially as shown and described.

5. The combination, with a burner, of a valve, a spring closing said valve, a closed expansible and contraetible chamber located within said burner and forming therewith passages for the gas, means, substantially as described, for opening and temporarily holding the said valve, and a diaphragm closing one end of the chamber and constructed to cngene with the valve, substantially as shown and described.

6. The combination, with a burner, of a chamber, as G, a diaphragm, 9, closing the lower end of the same, aspringpressed valvedisk, G, opening downwardly, a valveseat for the same, a projection on the valve-disk projecting through the seat and adapted to be engaged by the diaphragm, a stem, D, for the valve, containing a cam surface, d, and a notch, d, a cam, c, a stop, f, for the same, a spring-pressed spindle carrying said cam,and a knob or button on the same, substantially as shown and described. c

7. The combination, with aburncr-body, as A, having two or more lateral branches, as A, of an expansible and contraetible chamber located within said body A, a springactuated valve, a cam carried by a spring-actuated spindle and adapted to open the valve, and a diaphragm at the one end of the chamber and constructed to engage the valve, substantially as shown and described.

In testimony whereof I have hercu nto set my hand and seal in the presence of two subseribing witnesses.

FRANZ X. \VAG H ER. 

